help me determine output levels and the other problems, thanks

In the past five years the market of instant noodles in Indonesia has been virtually a battle ground for Indomie (ICBP-Indofood Group) and Mie Sedaap (Wings Group), both controlling 89% of the market in Indonesia. However, current sharp market competition has resulted in cut in the ICBP's market share as the market leader. As ICBP general manager, you have been asked to resolve this situation. Because those two companies dominate the noodle market, therefore it can be considered as an oligopoly competition. According to R&D data, the market demand function is given by P = 2,000 20(Q1 + Q2). And Indofood cost function is C(Q, ) = 1,500Q, while Wing's cost function given by C(Q2) = 1,600Q2 a. Determine output level for the leader (Indofood) in million pack/week. b. Determine output level for the follower (Wings) million pack/week. c. Determine the equilibrium market price. d. Determine the profits of the leader and the follower